Acta Scientiarum http://www.uem.br/acta ISSN printed: 1806-2563 ISSN on-line: 1807-8664 Doi: 10.4025/actascitechnol.v37i3.25988 Orange-flavored soft drink with the addition of isolated whey protein Mirian Souza Prado1, Débora Francielly de Oliveira2, Ivane Benedetti Tonial2, Isabel Craveiro Moreira1, Lúcia Felicidade Dias1 and Alexandre Rodrigo Coelho1* 1Departamento de Tecnologia de Alimentos, Universidade Tecnológica Federal do Paraná, Avenida dos Pioneiros, 3131, 86036-370, Londrina, Paraná, Brazil. 2Departamento de Tecnologia de Alimentos, Universidade Tecnológica Federal do Paraná, Linha Santa Barbara, s/n, 85601-970, Francisco Beltrão, Paraná, Brazil. *Author for correspondence. E-mail:
[email protected] ABSTRACT. Current assay developed an orange-flavored soda pop with the addition of isolated whey protein, bottled in a 2L-polyethylene terephthalate container and stored at room temperature for 90 days. Physical, chemical, microbiological and sensorial analyses were conducted periodically on the product. The physicochemical analysis showed pH 3.53, 11.5ºBrix and 224 mg of citric acid per 100 mL of the drink and the following proximal composition: protein 0.501%, humidity 88.9%, ash 0.084% and carbohydrates 10.5%. Microbiological analyses detected no microorganisms during the storage period of the drink. Sensorial analysis results had good acceptability. Results showed that the product is stable when stored at room temperature for 90 days. This beverage contains higher nutritional rates and the same calorie rates when compared to sodas and some oranges juices found on the consumer market. Keywords: beverage, protein source, sensorial profile, shelflife. Elaboração de um refrigerante, sabor laranja com adição de isolado proteico de soro de leite RESUMO.